package cn.zzuli.springcloud.service.impl;

import cn.hutool.core.util.IdUtil;
import cn.zzuli.commons.entity.CommonResult;
import cn.zzuli.commons.entity.Payment;
import cn.zzuli.springcloud.dao.PaymentDao;
import cn.zzuli.springcloud.service.PaymentService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import javax.annotation.Resource;
import java.util.concurrent.TimeUnit;

@Service
public class PaymentServiceImpl implements PaymentService {

    @Resource
    PaymentDao paymentDao;

    @Override
    public CommonResult create(Payment payment) {
        int result = paymentDao.create(payment);
        if (result>0){
           return new CommonResult(200,"插入数据库成功",result);
        }
        return new CommonResult(444,"插入数据库失败");
    }



    @Override
    public CommonResult<Payment> getPayMentById(Long id) {
        Payment result = paymentDao.getPayMentById(id);
        if (result == null) {
            return new CommonResult<>(445,"查询数据库失败");
        }else{
            return new CommonResult<>(200,"查询数据库成功",result);
        }
    }

    @Override
    public String paymentInfo_OK(Long id){
        return "线程池： "+ Thread.currentThread().getName()+"paymentInfo_OK, id: "+id+"O(∩_∩)O哈哈~";
    }


    @HystrixCommand(fallbackMethod = "paymentInfo_TimeHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "3000")
    })
    @Override
    public String paymentInfo_TimeOut(Long id){
        int timeNum = 2;
//        int age = 10 /0;
        try {
            TimeUnit.SECONDS.sleep(timeNum);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池： "+ Thread.currentThread().getName()+"paymentInfo_TimeOut, id: "+id+"        耗时： "+timeNum+"  秒";
    }

    public String paymentInfo_TimeHandler(Long id){
        return "系统繁忙，请稍后再试， 线程池： "+ Thread.currentThread().getName()+"paymentInfo_TimeHandler, id: "+id+"o(╥﹏╥)o";

    }



    //////////////////服务熔断/////////////////////////////////////
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value="true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value="10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value="10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value="60"),//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if (id<0){
            throw  new RuntimeException("*****id不能为负数");

        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"\t" +"调用成功，流水号是： "+serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id){
        return "id 不能为负数，请稍后再试";
    }
}
